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Description
Bug summary
If you use a FIPS (Federal Information Processing Standards) compliant Python install, then you cannot usepyplot.show to display a plot withplt.rcParams['text.usetex'] = True due to ahashlib.md5 call intexmanager.py.
This is similar to#18192 (and much of this report is modeled off of that)
There are 3 places in the code that seem to still usehashlib.md5:
matplotlib/lib/matplotlib/texmanager.py
Line 171 in24bb51c
filehash=hashlib.md5(src.encode('utf-8')).hexdigest() hashlib.md5(f'{latex}{fontset}{fontsize}'.encode()).hexdigest()[-10:]) md5=hashlib.md5()
There probably isn't a great reason not to replace md5 with sha256 (or something else) in these locations.
Code for reproduction
The big requirement here is a FIPS compliant system or at least a Python install compiled to be FIPS compliant. Then the following code will reproduce the error.
To reproduce,
- Run
sudo fips-mode-setup --enable && sudo reboot(there may be other methods) - After the reboot I confirmed FIPS mode had been enabled by running
fips-mode-setup --checkand it returned FIPS mode is enabled. python3 -m venv .venv./.venv/bin/python -m pip install matplotlib==3.10.0./.venv/bin/python fips_error.py. The contents offips_error.pyis listed below.
importmatplotlib.pyplotaspltplt.rcParams['text.usetex']=Truefig,ax=plt.subplots()plt.text(0,0,r'$\hat{\mathbf{x}}$')plt.show()
Actual outcome
$ python fips_error.py Exception in Tkinter callbackTraceback (most recent call last): File "/usr/lib64/python3.11/tkinter/__init__.py", line 1967, in __call__ return self.func(*args) ^^^^^^^^^^^^^^^^ File "/usr/lib64/python3.11/tkinter/__init__.py", line 861, in callit func(*args) File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/backends/_backend_tk.py", line 274, in idle_draw self.draw() File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/backends/backend_tkagg.py", line 10, in draw super().draw() File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/backends/backend_agg.py", line 382, in draw self.figure.draw(self.renderer) File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/artist.py", line 94, in draw_wrapper result = draw(artist, renderer, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/artist.py", line 71, in draw_wrapper return draw(artist, renderer) ^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/figure.py", line 3257, in draw mimage._draw_list_compositing_images( File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/image.py", line 134, in _draw_list_compositing_images a.draw(renderer) File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/artist.py", line 71, in draw_wrapper return draw(artist, renderer) ^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/axes/_base.py", line 3181, in draw mimage._draw_list_compositing_images( File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/image.py", line 134, in _draw_list_compositing_images a.draw(renderer) File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/artist.py", line 71, in draw_wrapper return draw(artist, renderer) ^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/axis.py", line 1416, in draw tlb1, tlb2 = self._get_ticklabel_bboxes(ticks_to_draw, renderer) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/axis.py", line 1343, in _get_ticklabel_bboxes return ([tick.label1.get_window_extent(renderer) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/axis.py", line 1343, in <listcomp> return ([tick.label1.get_window_extent(renderer) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/text.py", line 969, in get_window_extent bbox, info, descent = self._get_layout(self._renderer) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/text.py", line 373, in _get_layout _, lp_h, lp_d = _get_text_metrics_with_cache( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/text.py", line 69, in _get_text_metrics_with_cache return _get_text_metrics_with_cache_impl( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/text.py", line 77, in _get_text_metrics_with_cache_impl return renderer_ref().get_text_width_height_descent(text, fontprop, ismath) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/backends/backend_agg.py", line 211, in get_text_width_height_descent return super().get_text_width_height_descent(s, prop, ismath) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/backend_bases.py", line 566, in get_text_width_height_descent return self.get_texmanager().get_text_width_height_descent( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/texmanager.py", line 360, in get_text_width_height_descent dvifile = cls.make_dvi(tex, fontsize) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/texmanager.py", line 276, in make_dvi basefile = cls.get_basefile(tex, fontsize) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/data/users/ktm/matplotlib_test/.venv/lib64/python3.11/site-packages/matplotlib/texmanager.py", line 171, in get_basefile filehash = hashlib.md5(src.encode('utf-8')).hexdigest() ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ValueError: [digital envelope routines: EVP_DigestInit_ex] disabled for FIPSExpected outcome
No exception related to FIPS and the plot is created.
Additional information
$ .venv/bin/python -m pip listPackage Version--------------- -----------contourpy 1.3.1cycler 0.12.1fonttools 4.56.0kiwisolver 1.4.8matplotlib 3.10.0numpy 2.2.2packaging 24.2pillow 11.1.0pip 22.3.1pyparsing 3.2.1python-dateutil 2.9.0.post0setuptools 65.5.1six 1.17.0Operating system
RHEL 8.10 (with FIPS enabled)
Matplotlib Version
3.10.0
Matplotlib Backend
tkagg
Python version
Python 3.11.9
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